Invalid-lifter.



'0. AJG'REENE.

INVALID LIFTER.

APPLICATION FILED 0CT.10.1918.

1,299,933. Patented Apr. 8,1919.

4 a I/ 25 m g Hum/Wm 28 ED 12D" l 27 l s a 1 F4 INVENTOR.

A TTORNEYS.

" i an S Paran orni- 'ci-nmnns A. GREENE, or WILMINGTON, CALIFORNIA.

INVALID-L FTER.

Specification of Letters Patent.

Patented Apr. 8.1919.

' Application filed October 10. 1918. Serial N 0. 257,583.

- -To all whom it may concern: 1

Be it' known that I, CHARLES A. GREENE,-

a citizen of the'United States, residing at Wilmington, in the county ofLos." Angeles and State of California, .have invented new and usefulImprovements in Invalid-Lifters,

to provide a lifting and carrying device by means of which a patient orhelpless invalid can be handled with the least possible disturbance.

Another object is to provide a lifting device in which bed clothing maybe used as a part of a swing or hammock.

Another object is to provide a devlce by means of which the patient maybe held or suspended in any desired position.

Another object is to provide a suspending device by means of which anymember of the body, such as the head, the hand or the foot may be liftedor held 1n a suspended position.

With these and other objects in View, my invention consists in theconstruction, combination, and arrangement of parts hereinafter shown,described and claimed.

In the accompanying drawings,

Figure l is a side elevation of my lnvalld lifter illustrating its usein lifting an invalid from the bed.

Fig. 2 is an enlarged sectional view on the line 22 of Fig. 1, showingthe mechanism for suspending the block and tackle to the supportingframe. D

Fig. 3 is an enlarged view in elevationof one of the side bars of thelifting device showing the arrangement of the clamps in which thesuspending fabrlc is held to form a hammock or swing.

Fig. 4 is a still further enlarged sectional view on the line f of Fig.3 in side elevation of one of the clamps, parts of which are'broken awayto illustrate the action of the clamping member upon the fabric employedas a sling.

Fig. 5 is a still further enlarged sectional view on the line 5-5 ofFig. 3 showing in greater detail, the construction of one of the clamps.

Referring more particularly to the several naiiig or figures, ahorizontal bar of channel iron 10 is supported at a convenient heightabove the floor by uprights 11 and 12 fixed into parallel cross bars 13and 14 near the floor at right angles to bar 10, and whose ends areequipped with pairs of casters 15 and 16. This constitutes thesupporting frame of the lifting device which is made of sufficlentlength to admit a bedstead lengthwise between the uprights 11 and 12.The horizontal bar 10 extending lengthwise of the frame is composed ofbarn door channel iron which is fixed with the slot open- 111g 17downward. A four wheel carriage 18 having a flange pulley l9 suspendedfrom its middle point is adapted to run longitudinally from end to endof the supporting member within the channel. This pulley forms a part ofa block and tackle combina-' tion 20, to the lower block of which across bar 21 is fixed. This cross bar" extends cross w1se of thesupporting frame and its ends pass under pivot bars 22 and 23 whose endsare bent and fixed into side bars 24 and 25 parallel to the pivot barsbut longer. The side bars are thus supported in a balanced position andadmit of considerable adjustment longitudinally with reference to thecross bar.

U-bolts 26 in which clamps 27 are suspended are fixed into the middleand ends of side bars 24: and 25. The clamps consist of a suspendinglink 28, an outer clamping stirrup 29 and an inner clamping stirrup 30.The suspending link is attached to the inner clamping stirrup at itsupper end by a pivot pin 31 through the upturned ends of the stirrup.The sides of the ,stirrups are pivotally connected by pivots 32 and 33.Washers 34 and 35 are inserted between the inner and outer stirrups toreduce friction. A pin 36 joins the upper ends of the outer stirrups. Itis evident that the lower cross .bars of the inner and outer stirrupsserve as clamping jaws to hold the cloth or fabric passed between them.They are made of strip metal which is set at a slightly oblique angle tothe plane of the stirrup. A strip of channel metal 37 is fixed to theouter face of the inner jaw bar and a similar strip 38 is fixed to theinner face of the outer jaw bar. Strips of fiber, hard rubber or thelike are inserted in these channels to serve as gripping surfaces toincrease the frictional action of the jaws. Fig. 4 clearly shows theclamping action of the jaws upon the fabric which is formed into a tuftand dilajvll through between them.

The pivot bars 23 pass through eye bolts 41 which extend through theside bars and serve as supporting bolts to the side bars and at the sometime as stops for the cross bar-21.

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1 min ti ht r s he W ht. o t e h 1: ea e; 3he m-mhloqhohsw ngihh zormsdi is hen; re s lfhiz l h i the 99 and eekle until; he. Pat e is tedto th de-.. hred h ht e i he ed- Th Pat ent.

- esa he. held; n t s. posit on Q1; car ied;

desi edi elsewh re by hee ihe he. dev ce imthe be Qt l 1 e r purposesthan the one described ma h ser ed by my h fier- For instance by usingthe cloth strip between any two of the qh mps, a swing can be producedfor lifting or suspending any part of the body. I have shown side barsprovided with three clamps. It is evident that two or: a larger li i hfijmi ht he wir Various other chzinges in construction and arrangement ofpa nts In y i hev me de loythose ki led n the r withhut. le e -hes 2 11e spir t. Qrfi ntent on -sgq yhnedt A i; i

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